563685 has 8 divisors (see below), whose sum is σ = 901920. Its totient is φ = 300624.

The previous prime is 563663. The next prime is 563723. The reversal of 563685 is 586365.

563685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 563685 - 2¹⁴ = 547301 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18775 + ... + 18804.

It is an arithmetic number, because the mean of its divisors is an integer number (112740).

2⁵⁶³⁶⁸⁵ is an apocalyptic number.

It is an amenable number.

563685 is a deficient number, since it is larger than the sum of its proper divisors (338235).

563685 is a wasteful number, since it uses less digits than its factorization.

563685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37587.

The product of its digits is 21600, while the sum is 33.

The square root of 563685 is about 750.7895843710. The cubic root of 563685 is about 82.6061077314.

It can be divided in two parts, 56 and 3685, that added together give a triangular number (3741 = T₈₆).

The spelling of 563685 in words is "five hundred sixty-three thousand, six hundred eighty-five".